For the reason that the plug-in development uses the JAVA framework you need to have an installed JAVA Runtime Environment.If you don't have the JRE (JAVA Runtime Environment) installed then you'll get it here: http://www.java.com/download/manual.jsp

Spectrum Analyzer:Indicates the amplitude spectrum for a frequency range of 50Hz - 20kHz.

Oscilloscope:Uses a 5ms time base to draw the wave form.

Disclaimer and License: This Software is provided "as-is", without any express or implied warranty. In no event will the author be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software except for commercial use. Please contact me (Stephan Hotto) if there is a wish for a commercial implementation.